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The Magellanic Clouds (MCs) offer a unique opportunity to study the stellar evolution and nucleosynthesis of massive Asymptotic Giant Branch (AGB) stars in low metallicity environments where distances are known. Rubidium is a key element to…

Solar and Stellar Astrophysics · Physics 2015-03-17 D. A. Garcia-Hernandez

The study of the evolutionary properties of Asymptotic Giant Branch stars still presents unresolved topics. Progress in the theoretical understanding of their evolution is hampered by the difficulty to empirically explain key physical…

Solar and Stellar Astrophysics · Physics 2009-07-01 R. Guandalini , M. Busso

We present deep J,H,Ks photometry and accurate Color Magnitude Diagrams down to K ~18.5, for a sample of 13 globular clusters in the Large Magellanic Cloud. This data set combined with the previous sample of 6 clusters published by our…

Astrophysics · Physics 2008-11-26 A. Mucciarelli , L. Origlia , F. R. Ferraro , C. Maraston , V. Testa

It is still an unresolved problem how much AGB stars can contribute to the overall gas and dust enrichment processes in the interstellar medium within galaxies. We start tackling this problem, by using our test case observational data from…

Cosmology and Nongalactic Astrophysics · Physics 2010-11-09 M. Matsuura

We present period-luminosity relations for more than 3,200 red variable stars in the Small Magellanic Cloud observed in the second phase of the Optical Gravitational Lensing Experiment (OGLE-II). Periods of multiply-periodic light curve…

Astrophysics · Physics 2009-11-10 L. L. Kiss , T. Bedding

We investigate infrared properties of asymptotic giant branch (AGB) stars in our Galaxy and the Magellanic Clouds using various infrared observational data and theoretical models. We use catalogs for the sample of 4996 AGB stars in our…

Solar and Stellar Astrophysics · Physics 2020-12-11 Kyung-Won Suh

This brief review describes some of the observed properties of the populations of massive asymptotic giant branch (AGB) stars and red supergiants (RSGs) found in nearby galaxies, with a focus on their luminosity functions, mass-loss rates…

Solar and Stellar Astrophysics · Physics 2017-06-07 Jacco Th. van Loon

In this review I will discuss recent developments on the topic of resolved Asymptotic Giant Branch (AGB) stars and Long Period Variables (LPVs) in our Galaxy, the Magellanic Clouds, and the Local Group in general. Since the main…

Astrophysics · Physics 2007-05-23 M. A. T. Groenewegen

Some recent results on AGB research in the Magellanic Clouds are reviewed. Discussed are optical and IRAS based surveys, and recent results from the near-infrared DENIS survey, and ISO observations.

Astrophysics · Physics 2009-10-30 M. A. T. Groenewegen

The aim of this work is to use full evolutionary models to derive observational constraints on the mass loss rate of the upper Asymptotic Giant Branch (AGB) stars. The observations used to constrain the models are the relative number of…

Astrophysics · Physics 2016-08-30 P. Ventura , F. D'Antona , I. Mazzitelli

A radiative transfer code is used to model the spectral energy distributions of 57 mass-losing Asymptotic Giant Branch (AGB) stars and red supergiants (RSGs) in the Large Magellanic Cloud (LMC) for which ISO spectroscopic and photometric…

We have searched for near-infrared stellar counterparts of IRAS point sources in the Large Magellanic Cloud (LMC), in J and K-bands. This resulted in the detection of 21 counterparts, of which 19 are new discoveries. Using colour-magnitude…

This article compares the distribution of Ks magnitude of Large Magellanic Cloud (LMC) asymptotic giant branch (AGB) stars obtained from the DENIS and 2MASS data with theoretical distributions. These have been constructed using up-to-date…

Astrophysics · Physics 2007-05-23 M. -R. L. Cioni , L. Girardi , P. Marigo , H. J. Habing

The carbon-to-oxygen (C/O) ratio of asymptotic giant branch (AGB) stars constitutes an important index of evolutionary and environment/metallicity factor. We develop a method for mass C/O classification of AGBs in photometric surveys…

Solar and Stellar Astrophysics · Physics 2015-05-27 M. Wisniewski , J. B. Marquette , J. P. Beaulieu , A. Schwarzenberg-Czerny , P. Tisserand , E. Lesquoy

The stars in the Magellanic Clouds with the largest degree of obscuration are used to probe the highly uncertain physics of stars in the asymptotic giant branch (AGB) phase of evolution. Carbon stars in particular, provide key information…

Solar and Stellar Astrophysics · Physics 2016-02-17 P. Ventura , A. I. Karakas , F. Dell'Agli , D. A. García-Hernández , M. L. Boyer , M. Di Criscienzo

We present ISO photometric and spectroscopic observations of a sample of 57 bright Asymptotic Giant Branch stars and red supergiants in the Large Magellanic Cloud, selected on the basis of IRAS colours indicative of high mass-loss rates.…

It is now about 30 years ago that photometric and spectroscopic surveys of asymptotic giant branch (AGB) stars in the Magellanic Clouds (MCs) uncovered the first examples of truly massive (> 3-4 M_s) O-rich AGB stars experiencing hot bottom…

Solar and Stellar Astrophysics · Physics 2017-06-12 D. A. Garcia-Hernandez

This review discusses some of the observational constraints on what we know about the mass loss experienced by stars in the Asymptotic Giant Branch (AGB) phase of evolution. Mass loss affects the maximum mass attained by the core of an AGB…

Astrophysics · Physics 2007-12-18 Jacco Th. van Loon

We calculated theoretical evolutionary sequences of asymptotic giant branch (AGB) stars, including formation and evolution of dust grains in their circumstellar envelope. By considering stellar populations of the Large Magellanic Cloud…

Solar and Stellar Astrophysics · Physics 2016-08-10 F. Dell'Agli , P. Ventura , R. Schneider , M. Di Criscienzo , D. A. García-Hernández , C. Rossi , E. Brocato

We present N-band photometry for a sample of 21 dust- enshrouded AGB stars in the Large Magellanic Cloud, and three additional sources in the Small Magellanic Cloud. Together with near-IR photometry, this is used to give a tentative…

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